软岩巷道交叉点锚杆支护数值模拟分析  

Numerical Simulation Analysis on Anchor Bolt Support at Soft-Rock Roadway Junctions

作　　者：杨明宇[1] 宋宏伟[1] 何永礼[1] 唐德康[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2008年第4期9-11,共3页Journal of XUZHOU Institute of Architectural Technology

基　　金：国家重点基础研究973项目"不同尺度地质体的力学特性及力学行为研究"(2002CB412703)

摘　　要：以云南恩洪煤矿软岩巷道为背景,应用数值模拟对软岩巷道交叉点3种支护方案进行分析研究.结果表明,全断面预应力锚杆支护改善了交叉点的应力集中程度,起到一定卸压作用,并控制了围岩的变形量,保证了软岩巷道交叉点的稳定.Based on the soft rock roadway of Enhong colliery in Yunnan province, this paper analyzes by nmuerical simulation the three supporting plans for soft-rock roadway junctions. The results reveal that the full-face prestressed anchor bolt support improves the stress concentraton level of the junctions, which takes certain effect of pressure relief, and controlls the deformation of the surrounding rocks, which ensures the stability of the soft-rock roadway junctions.

关 键 词：软岩巷道 交叉点 数值模拟 锚杆支护 

分 类 号：TD353[矿业工程—矿井建设]